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NASA Measures 10 Days of U.S. Extreme Precipitation from Space

Screen Shot 2016-02-05 at 10.54.35 AMFor more than a week the weather over the continental United States has been punctuated by extreme events. NASA analyzed satellite data that measured the heavy precipitation over ten days from late January to early February.

Tornadoes that hit southern Florida tossed automobiles on January 27, 2016. On January 31 a winter storm with heavy rain, strong winds and isolated thunderstorms hit southern California killing at least one person. There were numerous reports of hail with these storms ranging from pea-sized to up to an inch in diameter. Powerful winds with these storms also brought down trees and power lines. A blizzard that followed the Democratic and Republican caucuses in Iowa dropped over 18 inches of snow in the Great Plains. Eleven tornadoes, spawned from a supercell thunderstorm, were reported On Tuesday February 2, 2016 in Mississippi and Alabama.

(From Jan. 25 through Feb. 3, IMERG data estimated that the most extreme precipitation over the United States during this period was over 200mm (7.9 inches) in an area where stormy weather frequently hit Mississippi and Alabama.
Credits: NASA/JAXA/SSAI, Hal Pierce)

Precipitation that occurred during the period from January 25 through the early hours of February 3, 2016 was estimated by NASA’s Integrated Multi-satellite Retrievals for the Global Precipitation Measurement mission (IMERG).

IMERG calculated precipitation estimates as liquid water although snowfall depths can be up to ten times greater. IMERG data estimated that the most extreme precipitation over the United States during this period was over 200mm (7.9 inches) in an area where stormy weather frequently hit Mississippi and Alabama.

From Jan. 25 through Feb. 3, IMERG data estimated that the most extreme precipitation over the United States during this period was over 200mm (7.9 inches) in an area where stormy weather frequently hit Mississippi and Alabama.

Credits: NASA

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